I have seen many displays on iPhone7 on the threads and most of them are uneven with a dimmer part on the bottom of the screen. Mine is also like this. I want to have a replacement, but I still worry about the new one is still uneven or worse. Can anyone shows his/her perfect screen and makes me believe that there IS perfect screen? The yellow tint sometimes bothers me really a lot. I had it on my iPad Air and RMBP. But the screens are large enough for me to ignore them sometimes. However, iPhone is small and it's easy to notice it..